دانلود مقاله ISI انگلیسی شماره 109559
ترجمه فارسی عنوان مقاله

مدیریت مشترک یک آبخیز دریایی متصل به کوهنوردی و درخت انفجاری

عنوان انگلیسی
Joint Management of an Interconnected Coastal Aquifer and Invasive Tree
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
109559 2018 11 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Ecological Economics, Volume 146, April 2018, Pages 125-135

پیش نمایش مقاله
پیش نمایش مقاله  مدیریت مشترک یک آبخیز دریایی متصل به کوهنوردی و درخت انفجاری

چکیده انگلیسی

Kiawe (Prosopis pallida), a mesquite tree considered invasive in many parts of the world including Hawai'i, has been shown to reduce regional groundwater levels via deep taproots. In areas where aquifers are primary sources of fresh water, kiawe control has the potential to be an integral component of water management planning. We develop an analytical dynamic framework for the joint management of kiawe and groundwater, and show that optimal water management depends on expected kiawe damages, while optimal kiawe removal depends on groundwater scarcity and removal cost. Using data from the KÄ«holo aquifer on the west coast of Hawai'i Island, we solve for joint management decisions with corresponding parameters related to kiawe damage and water scarcity. With 1.5% water demand growth, Kiawe should be removed if the removal cost is below $1884/ha. Our numerical results indicate that kiawe damage is nonlinear in the rate of water demand growth. The damage costs can be attributed to three main factors. When demand growth is low, kiawe damage is driven by a higher water extraction cost. For moderate growth, the effect is compounded by anticipated future scarcity. Damage is amplified by a backstop cost effect when the growth rate is high.