نتایج جستجو برای: haloxylon plantation area

تعداد نتایج: 590161  

Journal: :caspian journal of environmental sciences 2010
r. akhavan

this research was conducted to investigate spatial variability and estimate tree attributes in a plantation forest in the caspian region of iran using geostatistical analysis. sampling was performed based on a 50m?125m systematic grid in a maple stand (acer velutinum boiss) 18 years of age using circular samples of 200m2 area. totally, 96 sample plots were measured in 63 hectares and 14.25 hect...

Journal: :IOP conference series 2023

Abstract Kuwait is experimenting with the restoration of severely degraded terrestrial regions in its northern region, center for development wildlife habitats. The re-implantation and reproduction native plants project, which will run from June 2003 to May 2019, main part zones. most effective reducing aeolian mobile sediments were highlighted, along endangered plant species area, including Ly...

2017
Hairong Zhao Wanqin Yang Fuzhong Wu Bo Tan

Forest filtering is a well-known and efficient method for diminishing atmospheric pollutant (such as SO42- and Cl-) inputs to soil and water; however, the filtering efficiencies of forests vary depending on the regional vegetation and climate. The rainy area of West China has suffered from heavy rainfall and human activity, which has potentially resulted in large amounts of sulfur and chlorine ...

2006
P.K.E. Pellikka B.J.F. Clark T. Sirviö K. Masalin

This paper presents environmental change monitoring in the Taita Hills, Kenya applying SPOT XS satellite imagery, aerial photography and digital camera data. The paper presents the data, methods for atmospheric correction, and results from land cover change detection and soil erosion change detection. The results indicated that gully density has doubled in the test sites during the observation ...

Journal: :J. Geographic Information System 2009
Yi Guo Xiaoping Huang Jingqian Peng

Land use is an indicator of the interaction between human and the environment on the earth surface. Recently, an increasing attention has been paid to the issue of impact of land use and land cover change on environment and water quality. In this paper, we analyzed the land use and land cover change by using RS and GIS, and simulated its implications in runoff from 1991 to 2000 using SCS model ...

2016
Xiaolu Tang César Pérez-Cruzado Lutz Fehrmann Juan Gabriel Álvarez-González Yuanchang Lu Christoph Kleinn Rongling Wu

Chinese fir (Cunninghamia lanceolata [Lamb.] Hook) is one of the most important plantation tree species in China with good timber quality and fast growth. It covers an area of 8.54 million hectare, which corresponds to 21% of the total plantation area and 32% of total plantation volume in China. With the increasing market demand, an accurate estimation and prediction of merchantable volume at t...

2005
Alfred E. Hartemink

Plantation agriculture is more than 400 years old and contributes to the regional and national economies in many tropical countries. This paper reviews some of the main environmental issues related to plantation agriculture with perennial crops, including soil erosion, soil fertility decline, pollution, carbon sequestration and biodiversity. Soil erosion and soil fertility decline are of concer...

Journal: :Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan 2019

سید جمال الدین خواجه الدین, , محمد جعفری, , احسان زندی اصفهان, , حسین آذرنیوند, , حمید رضا کریم زاده, ,

In order to determine the reciprocal relationship between the important characteristics of soil and the growth of Haloxylon ammodendron (C.A. Mey) plant in segsi plain of Isfahan., ordination method was used. The study was performed through the stratified random sampling and the regions were separated according to the plant age and physical physiognomy, then 10 samples of Haloxylon ammodendron ...

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